In Circuit Programming?

Hey there!

I have currently the PICkit 2 USB programmer, which I believe is also the In-circuit Programmer.

So, I don't have to put the chip, program it, rip it out and put it to the target circuit anymore?

And, what's the best, quickest procedure of breadboard in-circuit programming for those 16F and 18F series?

You bring the Vdd, Vss, reset, icspdat and icspclk pins to a 5 pole header and you can programm it.
The pinnumbers of Vdd, Vss, reset, icspdat and icspclk you can find in tha datasheet of the pic chip you use.
The datasheet of your picchip you can find at Microchip Technology Inc. - a Leading Provider of Microcontroller and Analog Semiconductors

Open the PICKIT 2 software,

then click on Help > PICKIT 2 user guide > Chapter 3, In-Circuit Programming. This should be enough.